Fraction and equation calculator with solution

Calculator is ready to perform the following tasks:
- calculate a numeric expression with common and decimal fractions, parentheses, power, square root and percentages;
- show a short and detailed version of the solution in one of three ways - in decimal fractions with a given accuracy (like a regular calculator), in common fractions or mixed numbers;
- solve a linear or quadratic equation. For a quadratic equation with fractional coefficients, there are 2 solutions: either with the specified coefficients or with the reduction of the coefficients to integers (by default);
- solve a cubic equation if there is at least one rational root;
- solve the inequality;
- compare two numeric expressions;
- translate a common fraction to a decimal and a decimal to common fraction;
find a LCM, GCD, all the divisors and prime factors of multiple numbers;
- reduce, reduce to a common denominator and compare multiple fractions;
- calculate the proportion;
- plot graphs of a linear, quadratic function. (To plot a graph, specify an expression with ' X ' without the '=' sign).

The advanced capabilities of the calculator:
- use parameters (letters) instead of numbers to expressions and equations;
- replacing parameters with numeric values;
- substitution of expressions;
- long division for solving tasks in decimals (use the check box in the menu to show or hide long division).

Additional information:
- voice input of the task is available;
- three switchable windows with shared memory (history) for working with three tasks;
- save intermediate results in a history (temporary memory) for further use (for adding, substituting);
- storing examples in permanent memory;
- it is possible to print the solution or save it in a file;
- groups of screen elements, including the keyboard, are scaled separately for optimal adjustment for different screens;
- for the background, you can connect a picture from the gallery.

The app has ads. Advertising can be temporarily disabled if you watch the video.